Gonna be a bit controversial here, and say that sometimes the opposite can happen. That someone becoming successful can give them the confidence to share ideas they wouldn't have shared otherwise, and give ideas that people would have otherwise written off as 'ridiculous' a level of extra credibility in the process.

And that can be a double-edged sword. On the one hand, a lot of ideas put forward by successful companies and business people (like many from Apple or Google or Nintendo or whatever else) would never get off the ground if put forward by a random individual or company, and that risk taking gets us results that make the world better off.

At the same time though, there are a lot of successful people and companies that get hung up on 'bad' ideas that should have been shot down earlier. Like ex Nobel Prize winners that get into psudeoscience or grand overarching theories of everything, popular artists and creators that get away with shaky writing and uninteresting story concepts (George Lucas and the Star Wars prequels, JK Rowling after Harry Potter, etc) or any number of celebrities and politicians completely detached from reality.

So, there is a flipside to the article. Yeah, success can make you less likely to try stupid things because of your ego, but it can equally make you more likely to try them since your status gives you extra credibility and there's often no one there to tell you no.